Home / 2,185,468.80-3,278,203.20-2,143,478.40

Finding the Fourth Proportional to 2,185,468.80, 3,278,203.20 and 2,143,478.40

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Solution

The fourth proportional to 2,185,468.80, 3,278,203.20 and 2,143,478.40 is: 3,215,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,468.80 : 3,278,203.20 = 2,143,478.40 : x
  2. Step 2: Convert to fraction form
    2,185,468.80/3,278,203.20 = 2,143,478.40/x
  3. Step 3: Cross multiply
    2,185,468.80x = 3,278,203.20 × 2,143,478.40
  4. Step 4: Simplify right side
    2,185,468.80x = 7,026,757,750,010.88
  5. Step 5: Solve for x
    x = 7,026,757,750,010.88/2,185,468.80
  6. Step 6: Final answer
    x = 3,215,217.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.